Characteristics of the electromagnetic environment of the earth at satellite Demeter altitudes

Department of Physical Problems of the Buryat Scientific Center of the Siberian Branch of the RAS, Ulan-Ude Ionospheric display of total solar eclipses of 2006 March 29 and 2008 August 1 assessed from the satellite DEMETER data is presented. During solar eclipses at satellite altitude (~670 km): increase and spectrum broadening of intensity of VLF trasmitters signals on 16.56, 17.8, 18.3, 19.8 kHz are registered; decrease of electron temperature on 200 - 400° K is revealed; variations of level of electron and ion densities considerably depending on latitude and circumstances of eclipses are detected